Riveting machine



' July 29, 1930.

H. ELSNER RIVETING MACHINE Filed April 16 1929 l nivenfior; I

Patented July 29, 1930 i HEINRICH ELSNER. OF DRESDEN, GERMANY RIVETING MACHKNE Application. filed April 16, 1929. Serial No. 355,611.

The present invention relat to :1 riveting machine adapted particular-i ior riveting or stitchingiiber, board, leather or the like.

As it is generally desirable to cu'iploy a 5 riveting machine capable of two operations,

two dill'crent anvils are required one o t which may be tlat and the other angular. 'lhe fiat anvil serves for riveting flat mat rial while the angular anvil is used for working objects having walls and corners such as trunks,

boxes, cartons and the like.

It is known to the prior art to a rrange two different kinds of anvils interchangeably in the machine frame so that one of them had to be removed before the other could be put on. The work of unscrewing and securing anvils is quite bothersome, takes up much time, and, owing to the weight of the anvils, often requires special labor or auxiliary machinery. It is further known to combine fiat and angular anvils into a unit representing a stationary table which is placed either'i'nto a level or saddle-shaped table. I

The present invention provides a" flat and an angular anvil rotatably secured to a vertical shaft fixed to the machine frame so that they can be turned into working position to suit requirements. Preferably, the anvils are interconnectedso that the turning of one causes the rotation of the other. Both anvils can be held in any position by a locking dev1ce.

One embodiment of the invention is illustrated in the accompanying drawing, in

which Figure 1 is a side view of the riveting machine with the rivet supply device removed; Fig. 2, a front view of same; and Fig.

3, a horizontal section on the line 3-3, Fig. 1.

Referring to the drawings, 1 is the machine 40 frame withthe driving pulley 3 and the treadle 3. From the drive tl'm'connecting.rod

4 leads to the double-armed lever 5 carrying at its end the punch 6 which obtains the rivets I from the supply device 8. When the machine is actuated by the trundle 3. the punch (3 executes an up and down motion in order to ffect riveting.

The machine frame 1 is '.-rovi-1led with a vertical shaft 9 on which a flat anvil 10 and an angular anvil 11 are rotatably arranged.

of the other.

I claim A riveting machine with a flat anvil and an angular anvil rotatably arranged so that the turning of one causes the other to rotate characterized in that the two anvils are ar ranged on a special vertical shaft fixed to a vertical part of the machine frame.

In testimony whereof I have affixed my slgnature.

HEINRICH ELSNER. 

